#233A8D#233A8D
#233A8D is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.4% C 0.141 H 267.5°. Best body text is #FFFFFF at 10.19:1 contrast (WCAG AA passes).
Color values
| HEX | #233A8D |
|---|---|
| RGB | rgb(35, 58, 141) |
| HSL | hsl(227, 60%, 35%) |
| HSV | hsv(227, 75%, 55%) |
| CMYK | cmyk(75.2%, 58.9%, 0%, 44.7%) |
| CIE-LAB | lab(27.59, 21.82, -48.69) |
| CIE-LCH | lch(27.59, 53.35, 294.14°) |
| OKLab | oklab(38.4% -0.0062 -0.1404) |
| OKLCH | oklch(38.4% 0.141 267.5) |
| XYZ | xyz(7.0122, 5.3058, 25.8487) |
| Luminance | 0.0531 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 4.70
Cobalt (survey)
#1E488F
ΔE00 5.33
Blueberry
#464196
ΔE00 5.53
Darkish Blue
#014182
ΔE00 5.69
Cobalt
#0047AB
ΔE00 5.97
Darkslateblue
#483D8B
ΔE00 6.27
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#233A8D #8D7623
analogous
#236F8D #233A8D #41238D
triadic
#233A8D #8D233A #3A8D23
tetradic
#233A8D #8D236F #8D7623 #238D41
square
#233A8D #8D236F #8D7623 #238D41
split-complementary
#233A8D #8D4123 #6F8D23
monochromatic
#0B122B #17265C #233A8D #2F4EBE #5571D5
Accessibility & contrast
On white
10.19
#233A8D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.06
#233A8D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #233A8D
10.19:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##233A8D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##233A8D | 1.00 | 10.19 | 2.06 | 10.19 |
| #FFFFFF | 10.19 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.06 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.19 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004690
Deuteranopia (green-blind)
#003C8B
Tritanopia (blue-blind)
#004F5D
Achromatopsia (no color)
#414141
Design tokens & code
CSS
--color: #233a8d; /* rgb */ color: rgb(35, 58, 141); /* oklch */ color: oklch(38.4% 0.141 267.5);
Tailwind
colors: {
custom: {
50: '#6e6faf',
500: '#233a8d',
950: '#000000',
},
}SCSS
$custom: #233a8d; $custom-light: #6e6faf; $custom-dark: #000000;
JSON
{
"hex": "#233a8d",
"rgb": {
"r": 35,
"g": 58,
"b": 141
},
"hsl": {
"h": 226.981,
"s": 60.227,
"l": 34.51
},
"oklch": {
"l": 0.38397,
"c": 0.14057,
"h": 267.5
},
"luminance": 0.05307
}Semantic roles & 50–950 ramp
primary
#233A8D
secondary
#B9A353
accent
#C144E3
background
#F7F6FA
surface
#EDECF5
border
#C8C7CF
text
#080710
muted
#7B7A7F